Get a real piece of pipe and put the conduit inside it. Keeps you from having this type of fun again! :)

That is not true. With a split phase system, like here in the US, you only need one if the legs of the 115 are on different phases


EDIT: This is the only requirement which no one seems to follow:

and no I am not an electrician.

No Ground Fault Interrupter?

I'm curious to know how the new pull went.

So just to clarify......the issue was defective material ie: wire?

Coulda got nicked when it was first installed.

Both, and it was taking the other hot w/ it.

That's correct and was option B,
option A, I pulled all the wires and ran 5 new ones.

When wire is run through a conduit like this the GFI is at the end of the circuit, there are only breakers which never tripped in the house panel

That's the theory we came up w/

It was actually pretty easy(electricians lube is a great invention), the hard part was digging up part of the driveway to inspect the conduit.

I don't think you understood my post. Two phases give you 230 volts, which needs only one neutral. This would be wired with three conductors, and these are typically required in a kitchen, i.e. 2x115 volt on one receptacle but on two opposed circuit breakers.

Two 115 V circuits requires two neutrals, and would be supplied with a pair of two conductor wires.

No

Say you have a workshop 50 feet away and you want a series of 115 receptacles down two walls where each wall requires a 20 amp breaker. You would put a two pole breaker in the box (supposed to at least), run red, black and white wires the 50 feet and then parallel the neutral to each wall. Even when each leg is drawing 20 amps (40 total) there will never be more than 20 in the neutral.

I expect with the price of copper you will see more of this.

He meant if they were off the same buss. While you could do a single neutral off the same side of the panel for multiple circuits, you shouldn't.

OK, I wasn't really sure.

I brought this up because I found this in a house and thought it was bogus until I read the NFPA book

not the same bus, the same yoke. the yoke is where the screws go for a device. say for instance that you have a dishwasher and a garbage disposal both pulling from the same receptacle, that would need separate neutrals. like i said earlier, if the loads are somewhat balanced you can operate two circuits with one neutral.

Is the scenario outlined in post #53 legal?

yes it is.
but the point is moot.
bill has re-pulled the wires.
he has included two neutrals, one for each circuit.
if he wants to be sure he didn't do this again he can run a test.
it is called a megger and it tests the insulation of the wire.
i would start at 100v.

So what was the point of post #56?

This is confusing. A DW a GD will many times be on the same receptacle, but one would be switched. I could do that with one neutral and circuits from opposite busses. I could not do that with one, I don't believe.

The point is moot, but any misinformation is not. I'm not sure we have all agreed on what is what here.

The way I see it:
2 legs, one neutral (and we will assume in all cases, a ground): you could get 230v or 2 separate 120v circuits. In both cases, the power is coming from both sides of the panel.

2 legs, 2 neutrals: No shared neutral and the circuits can be on either leg or the same. If run in different sizes and on different breaker ratings, they must be kept separate. If the circuits are from the same buss, no 230v will measure.